Apoptosis is:

a. Enhanced red cell production
b. Programmed cell death
c. Directed exit of cells from the bone marrow
d. Accidental cell death from trauma


ANS: B
Apoptosis is programmed cell death, which is a normal physiologic process eliminating unwanted, abnormal, or harmful cells. It is different from accidental death because of trauma—this is called necrosis.

Health Professions

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From which layer of the heart wall is the electrical conduction system formed?

A. epicardium B. myocardium C. endocardium D. pericardium

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Positive chronotropic effects lead to a(n) ________ in heart rate

A) lowering B) stabilization C) decrease D) increase

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The definition of a preexisting condition is a condition for which:

a. the patient has been seen within a defined period of time. b. the patient has the gene identified as causing the condition. c. the patient has symptoms that may be considered signs of the condition. d. the insurance company may be responsible for large amounts of money.

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 Security drills 

A. are a waste of time. B. keep staff aware of security risks. C. are required by JCAHO. D. are conducted when the inspectors are present.

Health Professions